triatomic

American  

[trahy-uh-tom-ik] / ˌtraɪ əˈtɒm ɪk /

adjective

Chemistry.

1. having three atoms in a molecule.

2. having three replaceable hydrogen atoms.

3. having three replaceable hydroxyl groups.

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triatomic British  

/ ˌtraɪəˈtɒmɪk /

adjective

1. chem having three atoms in the molecule

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Other Word Forms

• triatomically adverb

Etymology

Origin of triatomic

First recorded in 1860–65; tri- + atomic

Example Sentences

Hoy, A. R. & Bunker, P. R. A precise solution of the rotation bending Schrödinger equation for a triatomic molecule with application to the water molecule.

From Textbooks • Jan. 1, 2017

It is worthy of notice that in diatomic elements four funnels open on the faces of tetrahedra; in triatomic, six funnels on the faces of cubes; in tetratomic, eight funnels on the faces of octahedra.

From Occult Chemistry Clairvoyant Observations on the Chemical Elements by Sinnett, A. P.

The corresponding group contains phosphorus, arsenic and antimony: bismuth also belongs to it, but was not examined; they are triatomic, diamagnetic and negative.

From Occult Chemistry Clairvoyant Observations on the Chemical Elements by Sinnett, A. P.

III.—Boron, scandium and yttrium were examined; they are all triatomic, paramagnetic, and positive.

From Occult Chemistry Clairvoyant Observations on the Chemical Elements by Sinnett, A. P.

The corresponding group consists of nitrogen, vanadium and niobium; they are triatomic, paramagnetic, and negative.

From Occult Chemistry Clairvoyant Observations on the Chemical Elements by Sinnett, A. P.